int frac pi 2 - frac pi 2 cosx dx - JAMB Mathematics 2008 Question
(\int ^{\frac{\pi}{2}}_{-\frac{\pi}{2}})cosx dx
A
7
B
1
C
2
D
3
Ask EduPadi AI...
Correct Option: B
(\int ^{\frac{\pi}{2}}_{-\frac{\pi}{2}})cosx
([sin x]^{\frac{\pi}{2}}_{\frac{\pi}{2}})
= sin(\frac{\pi}{2})- (-sin (\frac{\pi}{2}))
= sin (\frac{\pi}{2}) + sin (\frac{\pi}{2})
= 2 sin (\frac{\pi}{2})
= 2 sin 1.5714
= 2(0.2704)
= 0.5
= 1
Please share this, thanks:
#JAMB #JAMB
Add your answer
No responses